Inside the method displayScoreView() you are adding an ActionListener to the button referenced by $resumeButton which will eventually invoke the resumeQuestion() method. Since displayScoreView() is an instance method that may be invoked multiple times (and it seems that it will) while $resumeButton contains the same button instance the entire lifetime...

Those properties aren't available in the KeyPress event: The KeyPress event is not raised by non-character keys other than space and backspace; however, the non-character keys do raise the KeyDown and KeyUp events. Subscribe to the KeyDown event, where you have access to any modifier keys (control, alt, shift) the...

that's because he adds the character after the execution of the function.you can prevent the addition of the character and add it in your code. if(String.fromCharCode(event.which) == '@'){ event.preventDefault() $('#post-txt').val(str + '@[TEXT]'); } ...

You need to use Console.ReadKey() to see when a key is press, and as that function is a blocking function you can use Console.KeyAvailable to only call it when you know the user is pressing something. You can read more here and here. Your code can be changed to: //console...

stackoverflow.com/questions/1367700/… explains it well. keydown is only tracking the key itself, not the state of the key. If you press 'A' KeyDown generates a KeyCode of Keys.A and if you press 'shift-A' you also get a KeyCode of Keys.A.

As the author of a few popular games on MATLAB Central, I can give you an idea of how to do this properly in MATLAB. I cannot guarantee my way is not the most optimal, but this is the best solution I have come up with after thinking about this...

As I commented above, the click event does not have a property called keyCode so doing event.keyCode will not work. The only reason that control and alt work is because they are properties of the click event, event.ctrlKey and event.altKey. You can be a little more creative and use something...

You want to handle a command key (Control) and that won't happen in a standard KeyPress event. To do that you have to override ProcessCmdKey method on your form. protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { if (keyData == (Keys.Control|Keys.Z)) { if (undoList.Count > 0) { ignoreChange =...

Use a SwingWorker to collect each image frame in your implementation of doInBackground(), publish() frames as they become available, and add them to a List<BufferedImage> on the event dispatch thread in your implementation of process(). You can navigate through the List<BufferedImage> as shown here for List<String>.

After trying seemingly every solution, using this python xbmc json module did the trick! Not quite a key press, but controls xbmc as if it were https://github.com/jcsaaddupuy/python-xbmc this is the code I modified to get GPIO input to trigger events in XBMC import RPi.GPIO as GPIO from xbmcjson import XBMC...

You're getting this error, because you've bound the keys on every press. Any time you press 1-4 it tries to create a new raw_input, even if the current isn't complete. Which raises an error. Use a variable to tell when an input is in use. import Tkinter as tk inch...

Other then setting your values to 0 on else. Use a onkeyup event handler. Then for onkeypress set your values to 1. And onkeyup set them to 0: document.onkeydown = function tast (e) { if (e.keyCode == 39) høyre = 1; if (e.keyCode == 37) venstre = 1; if (e.keyCode...

I would run all of your string inputs through the following (or something similar) before trying to assign them to an integer variable, especially when dealing with direct user input. string myVar1; //Something that assigns a value to myVar1 if(String.IsNullOrEmpty(myVar1)) { myVar1 = "0"; } else { int number; bool...

There are a lot of ways to do this, most people use jQuery but below is an example with raw JavaScript. You can usually listen to either key down or key up. In most cases, you won't want code to execute until the key is released (key up). <!DOCTYPE html>...

This will add a Row if and only if the current cell is the last one in the DGV and the user presses Tab. (Note that (obviously) the user now can't tab out of the DGV, except by backtabbing over the first cell..) int yourLastColumnIndex = dataGridView.Columns.Count - 1; protected...

I guess you can use setTimeout like this: var one = document.getElementById('one'); var two = document.getElementById('two'); one.addEventListener('keypress', function(e) { setTimeout((function(elem){ return function(){ elem.focus(); }; })(e.target.nextElementSibling),0); }); <input id="one" type="text"/><input id="two" type="text"/> The setTimeout will fire the function on the next stack of execution, so after the element is filled....

You can attach a timer to your figure, start it with the KeyPressFcn and stop it with the KeyReleaseFcn. The example below will create a figure, and display a random number in the console as long as the key f is pressed. function h=keypressdemo h.fig = figure ; %// set...

You can use setSpecialValueText(); QSpinBox spinBox; spinBox->setSpecialValueText(tr("-")); You can then check if the special value is selected by connecting valueChanged(QString) function. Note that this is different from valueChanged(int) You can then check the value of the passed string in a slot, and if it is equal to special text, you...

It means the same as it does everywhere else. It does nothing special when used near a var statement. If the left hand side evaluates as true (i.e. not 0, undefined, etc), it evaluates as the left hand side. Otherwise, it evaluates as the right hand side. Precedence rules means...

keyPressed can (and will be) called repeatedly while the key is pushed. You should put in flag that you can check to see if this a repeated key event... int lastKey = -1; public void keyPressed(KeyEvent arg0) { // TODO Auto-generated method stub int codigo = arg0.getKeyCode(); if (codigo !=...

I suspect it's successfully calling editableTextBlurred, but then that function isn't working. And the reason it's not working is that it expects this to refer to the input element, but the way you're calling it, this will be the global object (in loose mode) or undefined (in strict mode). To...

I suppose if you don't want to resort to multithreading (one thread doing the computation in the while loop, another one waiting for input and setting a global sentinel value to break the while loop) you can try to implement breaking the loop on catching a keyboard-interrupt (ctrl-c). This should...

You are almost there, the this in var origVal = $(this).val() points to the document element. Use a specific textarea selector. var origVal = $('#textarea').val() Updated Fiddle Also, remove origVal from keydown(function(e, origVal). The global origVal is accessible in keydown. ...

You were almost there. Just check that there are no more than 2 characters after the decimal. UPDATE 1 - check carat position to allow character insertion before the decimal. UPDATE 2 - correct issue pointed out by ddlab's comment and only allow one dot. function validateFloatKeyPress(el, evt) { var...

Usually, the way one solves this problem is with a setTimeout(). You set the timer for N seconds. If the keypress happens, you cancel the timer. If the keypress doesn't happen, the timer will fire giving you your alternate event. You probably wrap this in some sort of function that...

Ok so with help from some friends i was able to get what i wanted, here is what we did: private bool denykey = false; private void textBox1_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Back) { denykey = false; return; } var countText = 0; foreach (var letter in...

You just need to set the value of KeyCode = 0. That will "swallow" the key and not have anything happen. You also want to use the bit mask to look for the presence of the shift being pressed Dim intShiftDown As Integer intShiftDown = (Shift And acShiftMask) > 0...

The answer in the proposed duplicate is incorrect, unfortunately. It doesn't ignore repeated KeyDown events, and so will gradually increase the "delta" value in the direction being handled by each key case. It also doesn't respond to the keypress immediately (i.e. no action happens until the first timer tick). This...

Couple of things to note here: a) Do you really want to be calling KeyCheck directly as your sample code suggests or should it be wired up as a handler on the form (where the info you're asking will be automatically provided - will require a change in signature to...

You can use a filter like FilterQueryProvider with LIKE % command which will try to match character more efficiently rather than just pulling out the whole information. Example, // select query String sql = ""; sql += "SELECT * FROM " + tableName; sql += " WHERE " + fieldObjectName...

Try using the keydown event instead of the keypress event. Keydown fires first. Also prevent the default action if you want to stay inside the input. (if you don't want to stay inside the input, just remove that line) inputs[i].addEventListener("keydown", listItemTab); // not working yet function listItemTab(event){ event.preventDefault(); if(event.which ===...

I have worked with textbox APIs a bit ..And i don't think you can deal with its UNDO buffer due to its limitation.. but something you can do is to manually send an UNDO then read the textbox content. Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As...

You are throwing away all JS code when you write on "document". You need to put that answer on another element like a , document.getElementById('result') and then write the result to that element. Here is your plunk good sir var enterPressed = 0; window.onkeypress = function (e) { var keyCode...

If you want to capture command keys in your form or control you have to override the ProcessCmdKey method. In your form use this code public partial class Form1 : Form { public Form1() { InitializeComponent(); } protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { if (keyData == (Keys.Shift...

You can change the change the text of QLineEdit simply by : ui->myEdit->setText(ui->myEdit->text().append("a")); But if you really want to change it by sending QKeyEvent you can try this : QKeyEvent * eve1 = new QKeyEvent (QEvent::KeyPress,Qt::Key_A,Qt::NoModifier,"a"); QKeyEvent * eve2 = new QKeyEvent (QEvent::KeyRelease,Qt::Key_A,Qt::NoModifier,"a"); qApp->postEvent((QObject*)ui->myEdit,(QEvent *)eve1); qApp->postEvent((QObject*)ui->myEdit,(QEvent *)eve2); ...

valdr is implemented as AngularJS validator. This means the validation happens by default on keypress when the ngModel is updated. It is possible that you changed this behaviour in your app by configuring ngModelOptions to update the model on blur. If this is not the case, you most likely have...

KeyPress is the wrong event. You should handle the Validating event, which occurs when the user tries to leave the control. At that point, you can check that the input is a number and that it's unique. If it's not, you call SelectAll on the TextBox and set e.Cancel to...

The easy solution would be to add a gets before flip. Then it would wait for you to hit enter. If you really want to wait for spacebar, you can use curses. It can do robust input handling in the terminal, but it can get pretty complicated. If you're using...

For keyboard, it's a matter of preference. What you did is good for a few keys and I assume you know that you are using 'keydown' so the action is triggered once by each time the key is pressed. Depending on the need (I want the action to be triggered...

I understand that this is a PyQt question, but at the request of the OP will give a c++ example in case it helps in finding the Python solution. On the c++ side simulating the keyboard is done by posting keypress events to the application's event loop. These may be...

@Idle_Mind thanks. it works. Posting comment as answer: and I write this codes on Form1_Load The Load() event occurs before the form has been displayed, therefore your keystroke(s) is being sent to whatever application had focus right before your program was run (probably Visual Studio if you're running from...

The problem here is your jQuery selector is only finding the first element, since it only expects one element to have an id (ids are supposed to be unique). It is not a good practice to have multiple elements with the same id - this is part of your problem....

Textbox is element of your document so it is good behavior that it raise document's events. You should add handler to textbox to stop propagate event to document layer $('input').keydown(function (e) { e.stopPropagation(); } ...

I found a work around for this problem. Events execute in this order 1, Key down 2, key press 3, key up Steps to solve problem 1, use two events, key down and key press 2, cancel event in keydown if keycode is in range of capital letters 3, execute...

You can just check for the user agent and set the number accordingly, then use the var you took instead of the number! var key = (/Firefox/i.test(navigator.userAgent)) ? 173 : 189 ; then: if (evt.which == key) you can do this for all your numbers/possibilities...

The code on that linked answer is fairly readily convertible to Swift code, however there are a handful of gotchas you will need to take care of along the way: CGEventSourceCreate takes a CGEventSourceStateID, which is a typealiase for a UInt32, but the constants such as kCGEventSourceStateHIDSystemState are defined as...

The short answer to your problem is that you should use the key variable to check for BACKSPACE, TAB, ENTER, RETURN, ESC, and DELETE, not the keyCode variable like you're doing. For a longer explanation, here's a simplified MCVE of your program: void draw() { background(0); } void keyPressed() {...

The keypress event is simply not fired when the Tab is pressed - this also explains why there is no alert, independent of what preventing the default may do. Changing the code to use keydown allows the Tab to be caught and prevents the default focus-change (in Chrome1, anyway). $("#input").bind("keydown",...

It is not possible. You need an event "keyup" or "keydown" to be able to know the state of your ALT key after a new page loads. However you can store the state (boolean down or up) in localStorage for example. When a new page loads you can read the...

I believe your problem is coming from the end of keypress events after the keyup, rather than anything "going wrong", use a setTimout loop instead of calling run_keys at the end of each handler. Here is an example of a setTimeout loop (function looper() { run_keys(); window.setTimeout(looper, 100); }()); It's...

The problem I think is in the type of event you're trying to listen to. The keypress event is triggered when a char gets written into an input text, while tab key doesn't insert any character. It just blurs the input. Read more here. You might be looking for the...

One normally solves this problem by setting a variable which will record the fact that a character was read reading the character if no character is available (within a timeout, for instance), stop reading if no character was read yet, record the fact that one was read (as well as...